Mytery Object and Sick Anemone

[Flyboy450r]

Any one have any idea what this is in my first pic. I scrubbed my rocks before I put them in my tank 9 months later I rearranged my rock work there it was. So it grew with little or no light. It seems to be growing more now and started to burst of so it looks. Also my anemone is 9 months old and had lost it bubbles right away. Then last its tentacles and now looks like this. It east and contracts and reacts to me. It hasn't moved ever once it settled. Its under a 20k mh light. In a 29 gallon reef tank. Take a look at the pics and let me know what you think . Thanks Mike.

Maybe Algae picture by mcogar86 - Photobucket

[trustinno1]

looks like a sponge to me i have a few in my tank that look like that they are safe no worries

[kevinpo]

Hello,
Yes it is a sponge. I would recommend removing the Majano anemone from the side of the Zoanthids on the left. They can multiply fairly quickly and be a nuisance as they can sting and kill corals.

Regards,
Kevin